I'm thinking about giving this a go. Given that comment registration will be a focus of this release, I thought I'd mention it.
Since this is a new install it doesn't look like there's very many comments but there's more comments than posts…if I was able to import the old site (the data file for which yet lurks on the local drive) P6 would look like a more attractive test site than it does right now.
In this message, please let us know:
1. What version will you be upgrading from?
2. How many total comments are in your installation? (per weblog)
3. Will you enable comment registration? If no, why not?
4. The URL for your weblog(s)
If you're not comfortable installing alpha software, you may want to wait for the public beta. Our schedule calls for alpha testing to begin in the next two weeks.
Thanks as always for your interest in Movable Type!